Drum for spinning machines



' end, or auxiliary holed the pinch. rolls 3, said second set overlying ssid rolls 3 end being adopted for directiug short lengths of sheet hers ied therethrough'to a bar piler, generally des ignsted hy the reference character D, which is of any ordinary or preferred construe tion end which is located directly over the bushing tenlz l or over the transfer telole B according as one or the other is employed.

The driving means for the conveyors of the cooling hed compriws at power mechanism whereby intermittent rotery movement is imparted to the shaft 18 for advancing the conveyors step by step, and also includes means whereby said power mechanism is actuated by passage of sheet bars to their pro er position on the transfer table in res nose to be shifted to the cooling bed.

Said power mechanism comprises a, shaft 86 which is suitably coupled, ssloy e coupling 36* to the shaft 18 of the cooling bed mocha-- nism and which carries thereon a ratchet wheel 37. Mounted for independent rotary movement upon the shaft 36 adjacent to said ratchet wheel is an arm 38 of approximately triangular form, and pivoted to said arm at the forward outer angle thereof is a pawl 39 which rides upon the periphery of said ratchet wheel and. which is adapted to en gage with u tooth of the latter for importing thereto 2. partial rotation when said arm ses is actuated to swing forward on said shaft 36. The rear outer angle portion of said arm 38 is pivotally attached to the upper end of a. connecting rod 40 which has its lower end pivoted to a piston 41 which is arranged for reciprocation within an up right sir, hydraulic, or steam cylinder 42 which has its upper end open. The extreme lower end of said cylinder communicates through side-opening-port 43 with a sec- 'cylinder 44 in'which is disposed ovcic cully rcciprocable piston 45. Said piston 45 is carried on the lower end of a piston rod 46 which extends outward through the upper end of the cylinder i l and which is connected by a pivoted link to the lower end of the movable core 48 of a. suitable electromugnet L9.

however, said electromsgnet is energized,

the core 48 is instantly elevated, lifting the piston 45 to a point wherein the port 43 is thereby uncovered. The pressure fluid Said eleclromugnet is normally maintained deenerwhich enters said cylinder 44 through it port.

50 in the lower end oi the latter is thus permitfccl to enter the cylinder -12 for effecting upward reciprocating movement of the piston 4-1 whereby, through the intermediecy of the connecting" rod i0, erm 38, pawl 39 and ratchet 3?, a partial rotary movement ciated. The oio osite end of said lever 52 is pivoted to the link 4.7. Thus, in the final portion of the upward movement of said piston-41, the lever 52 is swung on its mounting whereby the piston 45 is positively thrust downward to its normal sea-ted position', the core 8 of the elcctromsgnet having been previously rcleused through the breaking of the energizing electric circuit in which said electromugnet is located, as will hereinafter he explained. The return of said piston 45 cuts oil the entrance to the cylinder 42 of the actuating fluid through the port l3 and opens said port for the ere heust therethrough of the spent fluid, said piston having intermediate its ends a reduced portion or annular channel 54 which provides for free communication around said piston between said port 43 and an exhuust port 56 leading. to the atmosphere through the wall of the cylinder 44 As the spent pressure li'uid exhausts from the cylinder 42, the piston 41 is returned to its normal position by pressure fluid eduiii ted to the upper end of a relatively smell cylinder which is located in'u suitehle'po sltion shove suidcylinder i2 and which has operating therein a piston 58 connected by u connecting rod 59 to the upper end of the connecting rod l0. As is inonifestfthe downwer movement of said pistons i1 sud 58efi ects retrsction of the pawl 39 through out the distunce engagement with et 3?.

The cylinder 5'7 is made of such relatively smaller than the cylinder 42 thou while it sufiices to return the piston 41 to its lowcred position uponthe release or exhaust. oithe pressure, or motive, fluid from said the next tooth oi the ratchrequired to position it in cylinder is, the downwardly directed force 13 for illustrative purposes, circuit closer comprises 2. movable contest 60 curried by the upper end of or her '61 Aug. 5. 1924. v 1,593,671

W. J.v TALLMAN ET AL DRUM FOR SPINNING MACHINES Patented Aug. 5, i924.

WILLIAM J. TALLMAN AND CHARLES J. BACON, OF BUFFALO, NEW YORK, ASSIGNORS TO DUPONT FIBERSILK GOMIANY, OF TONAWANDA, NEW YORK.

. DRUM FOR SPINNING MACHINES.

Application filed January 17, 1924. Serial No. 686,724.

To all whom it may concern.

Be it known that we, WILLIAM J. TALL- MAN and CHARLES J. BACON, citizens of the United States, residing at Buffalo, in-the county of Erie and State of New York, haveinvented a new and useful Improvement in Drums for Spinning Machines, of which the following is a specification.

This invention relates to drums of the 1O- kind used in connection with the manufacture of artificial silk.

It has been found desirable to use drums of this kind having a cylindrical surface made-of glass for the reason that the fibers 1 of artificial silk adhere well to a glass sur face and for the reason that glass has the property of withstanding the chemical ac tion of the acid solutions to which the drums aresubjected while in use.

Drums heretofore used were made entirely of glass and since these drums must be handled frequently during the process of manufacture of artificial silk and must be subj ected to different temperatures during different parts of the process, considerable difficulty has been experienced in the useof these glass drums due to breakage. Much of this breakage occurs" at the ends of the drums, and since employees must handle the drums at the end portions thereof, injuries are frequently received. by employees, which injuries are often aggravated by the presence of acids on the drums. 1 1

The objects of this invention are to provide drums which can be usedgin place of the single piece glass drums heretofore used and which are so constructed as to resist the breaking of the drums; also to produce drums of thiskind which are of more durable and rugged construction than drums heretofore used and which require less careful handling by operatives; also to improve the construction of drums of this kind in other respects hereinafter specified.

In the accompanying drawings: Fig. 1 is an elevation of a drum embodyin this invention.

Tig, 2 is a transverse section thereof on line 2-2, Fig. 1.

Fig. 3 is a longitudinal central section .thereof.

Fig. 4 is an elevation of a drum of modified construction.

-Fig. 5 is a longitudinal central section thereof.

'these end pieces are secured to the glass cylinder by means of external threads a formed on the outer ends of the cylinder. B represents the end pieces which may be made of any suitable material which is not readily breakable and which is adapted to withstand the action of the acids or vapors to which the drums are subjected, aluminum -.75 for example, having been found to be well adapted for this purpose. Other metals, however, may be used, and, if necessary, they may be plated or covered with metals or materials resisting the action of acids. Each of the end pieces B is provided with an outer flange portion I) having an internally threaded part 6 adapted to engage with the threads a of the glass cylinder. The flange 6 extends laterally from a body portion 12 of the end piece, which extends substantially radially with reference to the axis of the cylinder. The radial body portion is provided with anannular depression 6 at the inner face thereof adjacent to the flange b and a gasket 6 of resilient or flexible material may be inserted into the depression to cooperate with the end of the glass cylinder for the purpose of forming a secure joint therewith, and also for forming a liquid-tight packing to prevent liquid from flowing into the interior of the cylinder. The gasket also forms a cushion which serves to absorb shocks to which the end piece may be subjected and thereby decreases 100 the tendency of the cylinder to break. The elasticity of the gasket also tends to cause the threads of the end pieces to yieldingly grip the thread emf the cylinder and thus prevents accidental unscrewing of the end 1 pieces from the glass cylinder. The radial body portion of each end piece terminates in an outwardly projecting flange or part C upon which the drum may be supported. 4 when standing on end. The outer face of 110 the threaded flange. 6 preferably converges. axially from the radial body portion? L forming araised portion Dfat the outer pee riphery' of the body portion which -may-. o-,.; operate withitlie usual rubber "rollers forl rotating the drum during the process of; I

- iiof the glassfcylmder also to a large extent manufacturingartificial silk.

' with internal threads e, the entire outer face 7 of the cylinder E being smooth and consequently availablelf'or winding artificial silk,

I In the construction shown in Figs and 7 5, a glass cylinder Eis used which differs from the'cylinder' A in that it is provided thereon. The end pieces, in this construction, are each provided with a substantially radial body portion F having an annular flange f adapted to extend into the glass cylinder and having threads f adapted to engage the threads 6 of the cylinder. The body portion of the end piece extends outwardly beyond the outer periphery of the glass drum, as shown at g, and serves the two-fold purpose of confining the silk upon the glass drum, and of engaging with the usual driven rubber rollers (not shown) which are used during a part of the process of manufacturing artificial silk, to impart rotary motion to the drum. 7 represents reinforcing ribs which may be arranged atintervals-connecting the inwardly extending flange f with the radially extending body portion F of the end piece. The outwardly extending part of the body portion is also provided with an annular groove 9 arranged adjacent to the threaded portions of the inwardly extending flange and containing a flexible gasket similar to the gasket shown in Figs. 1-3. I

In the construction shown in Figs. 6 and 7, a plain glass cylinder H is employed, and the end pieces I are held in place thereon by means of the tie bolts or rods K which extend through holes in one of the end pieces and engage in threaded holes in the opposite end piece. Preferably two ofthe bolts or rods have a threaded engagement with one of the end pieces and the two other bolts extend through the cylinder in the opposite direction and engage with threaded holes in the other end piece. In order tocorrectly center the glass cylinder and end pieces relatively to each other, the end pieces are preferably provided with inwardly extending, annular shoulders 2' and an annular shouldered gasket or packing ring L of flexible material is interposed between the glass cylinder and each end piece, the shoulder of the gasket fitting between the shoulder of the end piece and the inner surface of the end of the cylinder. Thus, the shoulders of the end pieces center the cylinder with reference to the end pieces and also serve to securely hold the end pieces against lateral displacement on the ends of the cylinder.

Drums of the kind described have the adrantag e's that'tlie meta'l end greatly ,-1"1educe the chances of breakage due to the 'gfact that the metal ends protect the glass cylinders against endwise blows or shocks,

.and the fact that the peripheral portions of the 'end piecesifextend beyond the periphery protectsjthe'glass [against lateral blows or shocks. Theprotective'end pieces are not subject to splittingor cracking as are glass ends and consequently employees cannot cut their'hands in the handling of our improved drums, even if a break should occur in the glass cylinder. By reducin the chances of breakage of the drums, the osses due to injury of employees and damage of goods on the drums are greatly reduced and by pro viding a drum of this kind of more-rugged construction, the employees need not exercise the same care in handling the drums, so that greater efficiency in the manufacture of artificial silk results. In case. a cylinder should be broken, the end pieces may 'be used again on another cylinder, so that the expense of replacing broken cylinders is much less than in constructions heretofore used.

It will, of course, be understood that it is not intended to limit this invention to the particular constructions shown, since end pieces of other construction may be provided and the means for holding the end pieces on the glam cylinders ma also be varied. The end pieces, while preferably made of metal, may be made of other materials which resist breakage, such, for example, as hard rubber compounds or the like. It is also not intended to limit the invention to use in connection with cylinders made of lass, and the word glass as used in this escription and in the claims, is intended to include frangible materials other than glass and which may be used in connection with the manufacture of artificial fibers.

We claim as our invention:

1. A spinning machine drum for use in the manufacture of artificial silk or the like, including a hollow, open-ended glass cylinder, and protective end pieces made of material which is not readily broken and held on the open ends of said cylinder and having parts extending radially beyond the periphery of said cylinder, and parts extending axially beyond the ends of said cylinder and upon which said rum may be supported in upright positions.

2. A spinning machine drum for use in the manufacture of artificial silk or the like, including a hollow, open-ended glass cylinder having threads formed thereon adjacent to the ends thereof, and protective end pieces having parts adapted to engage said threads for securing said end pieces to said cylinder and axially extending parts adapted to sup port the drum'in upright positions.

3. A spinning machine drum for use in the manufacture of artificial silk or the like, including a hollow, open-ended glass cylinder, and protective end pieces, said cylinder and end pieces having cooperating parts for securing said end pieces to said cylinder, said end pieces having parts extending radially beyond the periphery of said glass drum to protect said drum against damage, and parts on which said drum may rest when in an upright position.

, spinning machine drum for use in the manufacture of artificial silk or the like, including a hollow, open-ended glass cylinder having threads to the ends thereof, and protective end pieces having substantially radially extending body portions extending beyond the periphery of said glass cylinder and parts extending laterally in opposite directions, one of said parts of each end piece being adapted to engage the thread of one end of said cylinder and the other part forming a rest upon which the drum may be supported when standing in an upri ht position.

5. A spinning machine drum for use in the manufacture of artificial silk or the like, in cluding a hollow, open-ended glass cylinder, protective end pieces made of material which is not readily broken and which are held on formed thereon adjacent the open ends of said cylinder and have parts extending radially beyond the periphery of said cylinder and parts extendin axially beyond the ends of said cylinder an upon which said drum may be supported in upright positions, and gaskets of flexible material interposed between said cylinder and said end pieces.

6." A spinning machine drum for use in the manufacture of artificial silk or the like, including a hollow, open-ended glass cylinder having threads formed thereon adjacent to the ends thereof, and metal end pieces having substantially radially extending body portions extending beyond the periphery of said glass cylinder and parts extending laterally in opposite directions, one of said parts of each end piece being adapted to engage the thread of one end of said cylinder and the other part forming a rest upon which the drum may be supported when standing in an upright position, and gaskets of resilient material interposed between said cylinder and said end pieces and adapted to form a seal between said cylinder and said endv pieces and to absorb shocks to which said end pieces may be subjected.

WILLIAM J. TALLMAN. CHARLES J. BACON. 

